he will have a new set of challenges including the wars in iraq and afghanistan and battles inside the defense bureaucracy. he is older than any of his predecessors at the beginning of their ten ui. >> william and catherine will be greeted in canada. they arrived in canada yesterday for 9-day visit and were met by crowds of adoring fans. it will also handing flags to newly canadians at a citizenship ceremony. >> i think i would like to see them. i really do. i think he connects well with the people. >> the duke and duchess of cambridge have star power to burn. brits and canadians would like to see william ascend to the throne instead of prince charles. who is officially head of the state? >> queen elizabeth tsh. >> very impressive. >> and they are also heading to california next friday. >> the most watched video on youtube ever and the winner is --. ♪ ♪ >> why did you scream. did you like them or you heard it too much? that is justin beiber singing baby. they say the most viewed ever. 575 million hits. they say it's the most disliked video on youtube ever, 1.5 million people say th